When most wine drinkers hear the word Argentina, the first thing that comes to mind is Malbec, and with good reason: From the time that French grapes were first planted here, in 1853, Malbec has far and away been one of the biggest success stories in the entire wine world. Far from its home in France, Argentine Malbec, especially from Mendoza, has become a global phenomenon rivaled by only one other international transplant from its home country, New Zealand Sauvignon Blanc. While Mendoza Malbec has been popular in the United States and international wine market for at least two decades, there has been a more recent trend for producers to zero in on the subregions within Mendoza that their grapes are grown in, such as Lujan de Cuyo and Valle de Uco. Many are also producing plot-specific wines from within those subzones. While Argentina may never have a formal appellation system as complex as that of France, there is definitely a movement afoot to identify and define the terroir within Mendoza and its subregions.